Excellent 1890 Diehl Bi-Polar Motor Edison Bipolar Fan & Dynamo Era

Make sure to check out all of my auctions after you look at this one. I’m listing another eclectic selection of mechanical, technological and musical antiques, and I suspect that there will be something to interest just about everyone. Here’s an ancient and scarce Diehl bi-polar motor/fan. Judging from its appearance, it was probably manufactured…